LAnnRectangle::EnumHandleCallBack (original) (raw)

Summary

Processes each annotation object from the LAnnRectangle::EnumerateHandles function.

Syntax

#include "ltwrappr.h"

virtual L_INT LAnnRectangle::EnumHandleCallBack(hObject, pHandleInfo)

Parameters

HANNOBJECT hObject

Handle of the annotation object being processed.

pANNHANDLEINFO pHandleInfo

Pointer to structure that contains information about the annotation object handle.

Returns

Comments

The LAnnRectangle::EnumerateHandles function calls your callback function for each handle of a single annotation object.

The pHandleInfo structure can be used to obtain detailed information about an annotation object handle. It can also be used to change some (but not all) of the properties of a user handle. All properties of an annotation object handle can be changed EXCEPT the location. The properties of a node that can be changed with this function are:

• ID
• Visibility
• Pen color
• Fill color
• Shape
• Cursor

To change the location of a user-defined node, use LAnnRectangle::ChangeUserHandle.

To change the properties of an annotation object handle, set the corresponding field in the pHandleInfo structure, and return SUCCESS_CHANGED. To leave the handle properties unchanged, return SUCCESS_UNCHANGED.

To enable the LAnnRectangle::EnumHandleCallBack you must call LBase::EnableCallBack before calling LAnnRectangle::EnumerateHandles function.

For more information, refer to ANNHANDLEINFO.

Required DLLs and Libraries

• LTANN
• For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64.

See Also

Functions

• Class Members

Topics

• Annotation Functions: Creating and Deleting Annotations
• Implementing Annotations
• Annotation Functions: Implementing Custom Annotations

Example

For an example, refer to LAnnRectangle::EnumerateHandles.

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